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Malignant hyperthermia in myotonia congenita
T Heiman-Patterson1, C Martino, H Rosenberg
1Department of Neurology, Hahnemann University Hospital, Philadelphia, PA 19102.
Neurology
|May 1, 1988
Abstract:
We report a family in which two sisters with myotonia congenita (MyC) were referred for malignant hyperthermia (MH) evaluation after each developed muscle rigidity with anesthesia. Halothane contracture testing of skeletal muscle in both was consistent with MH susceptibility. A third sister without clinical evidence of MyC was negative on contracture testing. These results suggest an association between MyC and MH susceptibility.